{{shortShort description|Chinese epidemiologist (born 1947)}}▼

{{ChineseFamily name hatnote|[[Li (surname 李)|Li]]|lang=Chinese}} ▼

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Upon graduation {{citation needed|date=June 2021}}{{Clarify|date=June 2021}}{{Definition needed|date=June 2021}}{{dubious|date=June 2021}}{{disputed|date=June 2021}} in 1973,<ref name=":0" /> Li was assigned to work at the Department of Infectious Diseases at the {{ill|First Affiliated Hospital of Zhejiang University|zh|浙江大学第一附属医院}}, commencing her career in epidemiology.<ref name=":1" /> [[Acute liver failure]] caused by [[hepatitis B]] was very common in China. In 1986, Li and her team developed an artificial [[liver support system]] (ALSS), also called non-biological artificial liver (NBAL), to detoxify affected people and sustain their lives until the liver regenerates itself or a donor liver becomes available for [[liver transplantation|transplant]].<ref name="Ning2019">{{cite book|url=https://books.google.com/books?id=0LWZDwAAQBAJ&pg=PA332|title=Acute Exacerbation of Chronic Hepatitis B: Volume 2. Diagnosis and Management|last=Ning|first=Qin|publisher=Springer|year=2019|isbn=978-94-024-1603-9|page=332}}</ref> The system, now known as Li-NBAL,<ref name="Ning2019" /> has significantly improved survival rates for people with severe chronic hepatitis.<ref name="Chang2017">{{cite book|url=https://books.google.com/books?id=COutDgAAQBAJ&pg=PA193|title=Hemoperfusion, Plasmaperfusion And Other Clinical Uses Of General, Biospecific, Immuno And Leucocyte Adsorbents|last1=Chang|first1=Thomas Ming Swi|last2=Endo|first2=Yoshihiro|last3=Nikolaev|first3=Volodymyr|publisher=World Scientific|year=2017|isbn=978-981-4749-09-1|page=193}}</ref> Instead of patenting the invention, she disseminated the technology to more than 300 hospitals all over China free of charge.<ref name=":1" />▼

She was appointed Vice President of the First Affiliated Hospital of Zhejiang University in October 1993, a position she held for three years. In November 1996 she became deputy director of the State Key Laboratory of Infectious Diseases of [[Ministry of Health of the People's Republic of China|Ministry of Health]], and was promoted to director six years later. She also served as Director of the Department of Health of the Zhejiang Provincial Government from 1998 to 2008.<ref name=":0">{{Cite web|url=http://ysg.ckcest.cn/ysgDetails/baseInfo/717/grxx_jbxx.html|script-title=zh:李兰娟|website=Chinese Academy of Engineering|url-status=live|archive-url=|archive-date=|access-date=22 January 2020}}</ref>▼

During the [[2003 SARS outbreak]], Li led the disease prevention effort in Zhejiang and effectively controlled the disease's spread in the province.<ref name=":2">{{cite news|author1=Fang Kun ({{lang|zh|方堃}})|url=http://www.chinanews.com/sh/2018/01-12/8422134.shtml |script-title=zh:李兰娟院士团队荣获2017年度国家科技进步特等奖 |work=China News |date=12 January 2018 |accessdateaccess-date=22 January 2020 |language=zh}}</ref> During the 2013 [[avian flu]] outbreak in the [[Yangtze Delta]], Li's team quickly isolated the [[H7N9]] strain as the pathogen and proved that the strain originated from live poultry markets. Her research prompted the government to quickly close all live poultry markets, preventing the spread of the disease to the rest of China.<ref name=":2" /> For her contributions, she was awardedgiven a Specialspecial Prizeprize of the [[State Science and Technology Progress Award]] in 2017.<ref name=":2" />▼

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